Replication.config

Anushree Ganjam

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Oct 29, 2015, 6:19:31 AM10/29/15

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Hi,
Can any1 help me to write replication.config file
Now if i have a branch A in server A, I want to replication the branch A in Server B.

In Replication.config - how to mention only this branch to be replicated?
Please help with an example.

Thanks

Saša Živkov

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Oct 29, 2015, 6:54:30 AM10/29/15

to Anushree Ganjam, Repo and Gerrit Discussion

On Thu, Oct 29, 2015 at 11:11 AM, Anushree Ganjam <anushre...@gmail.com> wrote:

Hi,
Can any1 help me to write replication.config file
Now if i have a branch A in server A, I want to replication the branch A in Server B.

In replication.config, instead of:

push = +refs/heads/*:refs/heads/*

specify only that single branch:

push = +refs/heads/A:refs/heads/A

In Replication.config - how to mention only this branch to be replicated?
Please help with an example.

Thanks

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Anushree Ganjam

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Oct 30, 2015, 12:21:35 AM10/30/15

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Thanks zivkov,
let me ask my further query.
Now i have branch A,B,C in server 15.15.15.15 and branch B in 20.20.20.20

My replication.config

[remote "My NewReplica"]
url = 20.20.20.20:/home/gerrit2/gerrit_testsite/git/tmp_repl_mirror/${name}.git
push = +refs/heads/A:refs/heads/A
push = +refs/tags/*:refs/tags/*
threads = 3
authGroup = Public Mirror Group
authGroup = Second Public Mirror Group

Even though there are 3 branches on 15.15.15.15 , I want to replicate only 1 branch.
How do i start the replication only for this branch?
Is my replication.config correct?

Anushree Ganjam

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Oct 30, 2015, 12:32:32 AM10/30/15

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I started the replication using the command

ssh -p 29418 15.15.15.15 replication start A -- Is this command correct?

A is the branch name present in server 15.15.15.15.
In the logs/replication_log -- I can see all the other branches present in the server 15.15.15.15 are getting replicated.

Also I can see an exception
org.eclipse.jgit.errors.TransportException: ger...@15.15.15.15:/home/gerrit2/gerrit_testsite_buildserver/git/tmp_replica/tmp_replica/platform/packages/apps/Calendar.git: Auth cancel
        at org.eclipse.jgit.transport.JschConfigSessionFactory.getSession(JschConfigSessionFactory.java:159)

Caused by: com.jcraft.jsch.JSchException: Auth cancel
        at com.jcraft.jsch.Session.connect(Session.java:511)
        at org.eclipse.jgit.transport.JschConfigSessionFactory.getSession(JschConfigSessionFactory.java:116)
        ... 24 more

On Thursday, October 29, 2015 at 4:24:30 PM UTC+5:30, zivkov wrote:

praveenm mulimani

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Oct 30, 2015, 3:11:25 AM10/30/15

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please go through the below link
https://groups.google.com/forum/#!topic/repo-discuss/GICfb28Xbow

--

Praveen M
9986069592

Anushree Ganjam

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Oct 30, 2015, 1:23:13 PM10/30/15

to praveenm mulimani, Repo and Gerrit Discussion

Hi,

Yes i went through the link, But I am not clear.

How do I write the replication.config.

What is the format to write this.

Thanks

Anushree

Matthias Sohn

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Oct 30, 2015, 2:23:24 PM10/30/15

to Anushree Ganjam, praveenm mulimani, Repo and Gerrit Discussion

On Fri, Oct 30, 2015 at 6:23 PM, Anushree Ganjam <anushre...@gmail.com> wrote:

Hi,

Yes i went through the link, But I am not clear.

How do I write the replication.config.

What is the format to write this.

did you read the documentation for the replication plugin ?

https://gerrit.googlesource.com/plugins/replication/+doc/master/src/main/resources/Documentation/config.md

The syntax of git config files is described here

https://www.kernel.org/pub/software/scm/git/docs/git-config.html#_syntax

-Matthias

Anushree Ganjam

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Oct 31, 2015, 2:45:01 AM10/31/15

to Matthias Sohn, praveenm mulimani, Repo and Gerrit Discussion

Hi Matthias,

Thanks.

Yes, I have already read the links mentioned by you.

It is more generic way.

How do we customize so we can replicate the branch between 2 servers.

Can anyone help me with a real example of replication.config

Regards

Anushree

Anushree Ganjam

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Nov 1, 2015, 1:31:05 AM11/1/15

to Matthias Sohn, praveenm mulimani, Repo and Gerrit Discussion

Hi All,

Replication works well now without errors.

Thanks for the help.

In the replication_log I can see it is successfully done.

But the code is not synced on the replicated slave server :(

replication_log

[2015-11-01 04:57:01,059] [] scheduling replication tmp_replica/platform/packages/apps/Browser:refs/heads/android-5.1.1_r24_new => ger...@14.142.24.164:8080:/home/gerrit2/gerrit_testsite/git/tmp_repl_mirror/tmp_replica/platform/packages/apps/Browser.git
[2015-11-01 04:57:01,059] [] scheduled tmp_replica/platform/packages/apps/Browser:refs/heads/android-5.1.1_r24_new => [2ec89978] push ger...@14.142.24.164:8080:/home/gerrit2/gerrit_testsite/git/tmp_repl_mirror/tmp_replica/platform/packages/apps/Browser.git to run after 15s
[2015-11-01 04:57:16,059] [2ec89978] Replication to ger...@14.142.24.164:8080:/home/gerrit2/gerrit_testsite/git/tmp_repl_mirror/tmp_replica/platform/packages/apps/Browser.git started...
[2015-11-01 04:57:16,063] [2ec89978] Push to ger...@14.142.24.164:8080:/home/gerrit2/gerrit_testsite/git/tmp_repl_mirror/tmp_replica/platform/packages/apps/Browser.git references: [RemoteRefUpdate[remoteName=refs/heads/android-5.1.1_r24_new, NOT_ATTEMPTED, (null)...813f198c25d2af657464a87ad8933010e36885d8, srcRef=refs/heads/android-5.1.1_r24_new, forceUpdate, message=null]]
[2015-11-01 04:57:35,318] [2ec89978] Replication to ger...@14.142.24.164:8080:/home/gerrit2/gerrit_testsite/git/tmp_repl_mirror/tmp_replica/platform/packages/apps/Browser.git completed in 19258 ms

But when i clone the code from 14.142.24.164 (slave server)

-- Browser code is not modified.

Can any1 help me in this?

Anushree Ganjam

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Nov 1, 2015, 1:32:35 AM11/1/15

to Matthias Sohn, praveenm mulimani, Repo and Gerrit Discussion

Replication.config looks like this

[remote "testreplica164"]
url = ger...@14.142.24.164:8080:/home/gerrit2/gerrit_testsite/git/tmp_repl_mirror/${name}.git
push = +refs/heads/android-5.1.1_r24_new:refs/heads/android-5.1.1_r24_new
push = +refs/tags/*:refs/tags/*
threads = 4

Anushree Ganjam

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Nov 2, 2015, 1:32:59 AM11/2/15

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Hi,
Currenly in the replication.config.
I have changed like
[remote "testreplica164"]
url = ger...@14.142.24.164:8080:/home/gerrit2/gerrit_testsite/git/${name}.git
projects = tmp_replica/*
replicationDelay = 5
push = +refs/*:refs/*
threads = 4

I checked in the changes to Browser.git
Now in the replication_log

[2015-11-02 06:18:29,445] [cee3d3de] Replication to ger...@14.142.24.164:8080:/home/gerrit2/gerrit_testsite/git/tmp_replica/platform/packages/apps/Browser.git started...
[2015-11-02 06:18:29,448] [cee3d3de] Push to ger...@14.142.24.164:8080:/home/gerrit2/gerrit_testsite/git/tmp_replica/platform/packages/apps/Browser.git references: [RemoteRefUpdate[remoteName=refs/heads/android-5.1.1_r24_new, NOT_ATTEMPTED, (null)...9592bb61ea39f08b5872ac374546933077b84244, srcRef=refs/heads/android-5.1.1_r24_new, forceUpdate, message=null]]
[2015-11-02 06:18:30,437] [cee3d3de] Replication to ger...@14.142.24.164:8080:/home/gerrit2/gerrit_testsite/git/tmp_replica/platform/packages/apps/Browser.git completed in 992 ms

NOT_ATTEMPTED -- What does this mean?
Is there any error in pushing to the slave server?
Even though replication shows completed -- The code is not synced in the replicated slave server.
What may be the mistake?
Please help me

Anushree Ganjam

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Nov 8, 2015, 11:48:52 PM11/8/15

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Hi All,
Thanks for all your replies.
Replication is working well.

For a complete repo to be replicated.
1. Infact as we know .repo folder cannot be replicated.
2. So We need to setup mirror first on slave server
3. Then we need to setup replication on the master server to replicate the changes to slave server.

Kudos !!

- Anushree

mohit dhingra

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Nov 18, 2015, 12:46:28 PM11/18/15

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Hi Anushree,

While replication , i am getting this error.

[2015-11-17 17:05:12,343] INFO com.googlesource.gerrit.plugins.replication.ReplicationQueue : Push to ssh://10.44.215.70/opt/gerrit/g

it/registry-webapp.git references: [RemoteRefUpdate[remoteName=refs/heads/develop, NOT_ATTEMPTED, (null)...cde2a03f9c453319886bb78a8e4

b419bdab20f6c, srcRef=refs/heads/develop, message=null]]

[2015-11-17 17:06:19,235] WARN com.google.gerrit.sshd.GerritServerSession : Exception caught

java.io.IOException: Connection reset by peer

at sun.nio.ch.FileDispatcherImpl.read0(Native Method)

at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:39)

at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223)

at sun.nio.ch.IOUtil.read(IOUtil.java:197)

at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:379)

at org.apache.mina.transport.socket.nio.NioProcessor.read(NioProcessor.java:273)

at org.apache.mina.transport.socket.nio.NioProcessor.read(NioProcessor.java:44)

at org.apache.mina.core.polling.AbstractPollingIoProcessor.read(AbstractPollingIoProcessor.java:690)

at org.apache.mina.core.polling.AbstractPollingIoProcessor.process(AbstractPollingIoProcessor.java:664)

at org.apache.mina.core.polling.AbstractPollingIoProcessor.process(AbstractPollingIoProcessor.java:653)

at org.apache.mina.core.polling.AbstractPollingIoProcessor.access$600(AbstractPollingIoProcessor.java:67)

at org.apache.mina.core.polling.AbstractPollingIoProcessor$Processor.run(AbstractPollingIoProcessor.java:1124)

at org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:64)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)

at java.lang.Thread.run(Thread.java:744)

[2015-11-17 17:07:36,095] DEBUG gerrit.py - Execute gerrit command

[2015-11-17 17:07:36,113] DEBUG ref-update.py - ref-update hook triggered

[2015-11-17 17:07:36,114] INFO ref-update.py - Write to lock file: /tmp/0000000000000000000000000000000000000000.lock

[2015-11-17 17:07:36,114] DEBUG ref-update.py - Parse configuration for project

do you have any idea why it is saying NOT_ATTEMPTED.

my replication.config file looks like this

[remote "10.44.215.70"]

url = ssh://10.44.215.70/opt/gerrit/git/${name}.git

threads = 3

Please suggest if i need to add any other line in this may be for force push ( push = +refs/*:refs/* ) or do any other changes so that this error doesnt come for any repository.

Anushree Ganjam

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Nov 18, 2015, 3:32:44 PM11/18/15

to mohit dhingra, praveenm mulimani, Matthias Sohn, Repo and Gerrit Discussion

Hi mohit,
In the error log mentioned by you,

com.google.gerrit.sshd.GerritServerSession : Exception caught

java.io.IOException: Connection reset by peer

at sun.nio.ch.FileDispatcherImpl.read0(Native Method)

This is because port is not mentioned. Pls mention in replication.config 29418

url = ssh://10.44.215.70:29418/opt/gerrit/git/${name}.git

NOT_ATTEMPTED is not an issue. I am not sure what is the meaning of this.
In my case , where replication is success, I can see the same NOT_ATTEMPTED message.

Thanks
Anushree

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